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| {{Infobox homebrew
| | #REDIRECT [[3DS:Black screen unbrick#Section IX - 3ds hw test]] |
| | title = 3ds_hw_test
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| | for3ds = 1
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| | developers = aspargas2
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| | github = aspargas2/3ds_hw_test
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| | version = v0.1.0-alpha
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| | releasedate = 2023-10-28
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| }}
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| '''3ds_hw_test''' is a <code>.firm</code> application that tests a 3DS console's RAM for errors. There are plans to expand the test so it checks more types of hardware, but so far these plans are entirely a work-in-progress.
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| The test will take roughly 30 minutes on the Original 3DS, 3DS XL and 2DS, and roughly 45 minutes on the New 3DS, New 3DS XL and New 2DS XL.
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| == Instructions ==
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| === What You Need ===
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| * [[3DS:boot9strap|boot9strap]], [[3DS:GodMode9|GodMode9]] or [[3DS:fastboot3DS|fastboot3DS]] installed to FIRM partition(s), or a [[3ds-guide:ntrboot.html|ntrboot]] compatible flashcart
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| * [[3DS:Luma3DS|Luma3DS]]' <code>boot.firm</code> on the root of your SD card
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| * The latest release of {{GitHub|aspargas2/3ds_hw_test/releases|3ds_hw_test}} (the <code>3ds_hw_test.firm</code> file)
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| === Section I - Hardware Test ===
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| <tabber>
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| |-|boot9strap=
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| <span>
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| # Power off your console
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| # Insert your SD card into your computer
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| # Copy <code>3ds_hw_test.firm</code> to the root of your SD card
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| # Rename <code>boot.firm</code> to <code>luma.firm</code>
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| # Rename <code>3ds_hw_test.firm</code> to <code>boot.firm</code>
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| # Reinsert the SD card into your console
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| # Power on the console without pressing any other buttons
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| # Press any button to start the test
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| # When the test finishes, press any button to power off your console and insert your SD into your computer
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| # Open the newly generated <code>sd:/HWTEST.LOG</code> file in a text editor, then scroll to the end and look at the line that says <code>[ARM11] Done. ___ total errors detected.</code>
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| #* If the number on this line is 0, your console's RAM is not the issue
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| #* If the number on this line is not 0, your console's RAM is dying and you need to either repair or replace the motherboard
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| # Delete <code>boot.firm</code> and rename <code>luma.firm</code> to <code>boot.firm</code>
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| </span>
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| |-|fastboot3DS=
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| <span>
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| # Power off your console
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| # Insert your SD card into your computer
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| # Copy <code>3ds_hw_test.firm</code> to the root of your SD card
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| # Reinsert the SD card into your console
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| # Power on the console while holding {{B|HOME}} to enter the fastboot3DS menu
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| # Select <code>[+]Boot from file...</code> -> <code>sdmc:</code> -> <code>3ds_hw_test.firm</code>
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| # Press any button to start the test
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| # When the test finishes, press any button to power off your console and insert your SD into your computer
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| # Open the newly generated <code>sd:/HWTEST.LOG</code> file in a text editor, then scroll to the end and look at the line that says <code>[ARM11] Done. ___ total errors detected.</code>
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| #* If the number on this line is 0, your console's RAM is not the issue
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| #* If the number on this line is not 0, your console's RAM is dying and you need to either repair or replace the motherboard
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| </span>
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| |-|ntrboot=
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| {{warning|text=If you do not have a flashcart compatible with ntrboot, choose a different option.}}
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| <span>
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| # Ensure you already have a flashcart with ntrboot flashed. If you haven't flashed your flashcart with ntrboot yet, refer to [https://3ds.hacks.guide/ntrboot this page]
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| # Power off your console
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| # Insert your SD card into your computer
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| # Copy <code>3ds_hw_test.firm</code> to the root of your SD card
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| # Rename <code>boot.firm</code> to <code>luma.firm</code>
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| # Rename <code>3ds_hw_test.firm</code> to <code>boot.firm</code>
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| # Reinsert the SD card into your console
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| # Insert the flashcart flashed with ntrboot into your console
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| # Put the magnet into position to trigger the lid sensor. Refer to [https://i.imgur.com/5e3lKe2.png this image for reference]
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| #* Note, 2DS users will not need a magnet, as their device cannot physically fold. Instead, move the sleep switch to the right
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| # Press and hold {{Key press|START|SELECT|X}}, then briefly press and hold the power button for 2 to 3 seconds
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| # Your console should now be booted into 3ds_hw_test
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| #* If it did not boot and instead booted into the HOME Menu or turned off immediately, power off your console and try again. You may need a few attempts to get the magnet positioning correct
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| # Press any button to start the test
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| # When the test finishes, press any button to power off your console and insert your SD into your computer
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| # Open the newly generated <code>sd:/HWTEST.LOG</code> file in a text editor, then scroll to the end and look at the line that says <code>[ARM11] Done. ___ total errors detected.</code>
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| #* If the number on this line is 0, your console's RAM is not the issue
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| #* If the number on this line is not 0, your console's RAM is dying and you need to either repair or replace the motherboard
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| # Delete <code>boot.firm</code> and rename <code>luma.firm</code> to <code>boot.firm</code>
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| </span>
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| |-|GodMode9=
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| {{warning|text=This section only applies to consoles with GodMode9 installed into FIRM0/1.}}
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| <span>
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| # Power off your console
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| # Insert your SD card into your computer
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| # Copy <code>3ds_hw_test.firm</code> to the <code>sd:/gm9/payloads</code> folder of your SD card
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| # Reinsert the SD card into your console
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| # Power on the console while holding {{Key press|R|LEFT}} to enter the GodMode9 bootloader menu
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| # Select <code>Select payload...</code> -> <code>3ds_hw_test.firm</code>
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| # Press any button to start the test
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| # When the test finishes, press any button to power off your console and insert your SD into your computer
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| # Open the newly generated <code>sd:/HWTEST.LOG</code> file in a text editor, then scroll to the end and look at the line that says <code>[ARM11] Done. ___ total errors detected.</code>
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| #* If the number on this line is 0, your console's RAM is not the issue
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| #* If the number on this line is not 0, your console's RAM is dying and you need to either repair or replace the motherboard.
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| </span>
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| |-|Luma3DS chainloader=
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| <span>
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| # Power off the console and insert your SD card into your computer
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| # Copy <code>3ds_hw_test.firm</code> to <code>sd:/luma/payloads</code>
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| # Reinsert the SD card into your console
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| # Power on the console while holding {{B|START}} to open Luma3DS chainloader
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| #* If you dont see Luma3DS chainloader, follow [[3dsguide:restoring-updating-cfw.html|Restoring / Updating CFW]] and try again
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| #* If you still don't see it follow the boot9strap tab above instead
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| # Select <code>3ds_hw_test</code>
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| # Press any button to start the test
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| # When the test finishes, press any button to power off your console and insert your SD into your computer
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| # Open the newly generated <code>sd:/HWTEST.LOG</code> file in a text editor, then scroll to the end and look at the line that says <code>[ARM11] Done. ___ total errors detected.</code>
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| #* If the number on this line is 0, your console's RAM is not the issue
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| #* If the number on this line is not 0, your console's RAM is dying and you need to either repair or replace the motherboard
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| </span>
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| </tabber>
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| [[Category:Unbricking]]
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| [[Category:Nintendo 3DS troubleshooting]]
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